Brabus SLK/CLK

Automatic transmission fluid capacity & service interval

Brabus SLK/CLK requires automatic transmission fluid with a capacity range of 7,7 to 8,5 liters. The data covers 3 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

Type	Specifications
SLK 3.8 S (2000-2002)	Use: Normal Capacity 7,8 liter Code: 5/1
SLK V8 (2000-2002)	Use: Normal Capacity 7,7 liter Code: 5/1
CLK 5.8 (1997-2001)	Use: Normal Capacity 8,5 liter Code: 5/1

The Brabus CLK 5.8 carries an automatic transmission fluid capacity of 8.5 liters, the largest figure across all three configurations listed for the 1997-2002 period, which is consistent with the greater fluid volume demands of a larger displacement engine paired to an automatic gearbox.
The SLK 3.8 S automatic transmission holds 7.8 liters of fluid under normal use conditions, placing it between the CLK 5.8 and the SLK V8 in terms of total fill volume.
The SLK V8 automatic transmission capacity is rated at 7.7 liters under normal use conditions, the smallest figure among the three configurations despite the V8 designation, suggesting a different transmission unit than the one used in the CLK 5.8.
All three configurations share a normal use condition designation, meaning the listed capacities apply to standard operating environments rather than severe-duty or first-change-only scenarios.
The CLK 5.8 spans model years 1997-2001, while both SLK variants cover 2000-2002, indicating a period of overlap between 2000 and 2001 where all three configurations were in production simultaneously.
A capacity figure in the context of automatic transmission service typically represents the total fluid volume for a full drain and refill, and the 8.5-liter rating of the Brabus CLK 5.8 reflects a notably substantial fill requirement relative to many contemporary automatic transmissions of the era.